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LINEAR TECHNOLOGY  LT1769IFE#PBF  Battery Charger for 10 Cells of Li-Ion, NiCd, NiMH battery, 7V input, 20V / 2A charge, TSSOP-20

LINEAR TECHNOLOGY LT1769IFE#PBF
Manufacturer Part No:
LT1769IFE#PBF
Order Code:
2295365
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT1769IFE#PBF is a current mode PWM Battery Charger provides efficient solution to fast charge modern rechargeable batteries including Li-ion, nickel-metal hydride (NiMH) and nickel-cadmium (NiCd) that require constant-current and/or constant-voltage charging. The internal switch is capable of delivering 2A DC current (3A peak current). Charge current can be programmed by resistors or a DAC to within 5%. With 0.5% reference voltage accuracy, the LT1769 meets the critical constant-voltage charging requirement for Li-ion cells. A third control loop is provided to regulate the current drawn from the input AC adapter. This allows simultaneous operation of the equipment and battery charging without overloading the adapter. Charge current is reduced to keep the adapter current below specified levels. The charger can charge batteries ranging from 1 to 20V. Ground sensing of current is not required and the battery's negative terminal can be tied directly to ground.
  • Adapter current limit allows maximum possible charging current during system use
  • Precision 0.5% accuracy for voltage mode charging
  • High efficiency current mode PWM with 3A internal switch
  • 5% Charge current accuracy
  • Adjustable undervoltage lockout
  • Automatic shutdown when AC adapter is removed
  • 3µA Low reverse battery drain current
  • Current sensing can be at either terminal of the battery
  • Charging current soft start
  • Shutdown control

Product Information

Battery Type:
Li-Ion, NiCd, NiMH
Input Voltage:
7V
Battery Charge Voltage:
20V
Charge Current Max:
2A
Battery IC Case Style:
TSSOP
No. of Pins:
20Pins
No. of Series Cells:
10
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial;
  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.00027

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